Home / 12,672,004.80-19,008,007.20-7,629,009.60

Finding the Fourth Proportional to 12,672,004.80, 19,008,007.20 and 7,629,009.60

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Solution

The fourth proportional to 12,672,004.80, 19,008,007.20 and 7,629,009.60 is: 11,443,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672,004.80 : 19,008,007.20 = 7,629,009.60 : x
  2. Step 2: Convert to fraction form
    12,672,004.80/19,008,007.20 = 7,629,009.60/x
  3. Step 3: Cross multiply
    12,672,004.80x = 19,008,007.20 × 7,629,009.60
  4. Step 4: Simplify right side
    12,672,004.80x = 145,012,269,405,669.09
  5. Step 5: Solve for x
    x = 145,012,269,405,669.09/12,672,004.80
  6. Step 6: Final answer
    x = 11,443,514.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.